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#include<iostream>

using namespace std;

int main(){

    int n,sum=0,minn=10000,a,d=0;
    cin >> n;
    for(int i=0;i<n;i++){
        cin >> a;
        sum += a;
        if(a%2==1){
            d++;
            if(minn > a)
                minn = a;
        }
    }
    if(n==1){
        if(sum % 2 == 1)
            cout << "NIESTETY";
    }
    else{
        if(d%2==0)
            minn = 0;
        cout << sum - minn;
    }
    return 0;
}